Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Holographic digital watermark










Image Number 5 for United States Patent #7551750.

A digital watermark which is incorporated, perceptibly or imperceptibly, into a diffractive device such as a hologram. When applied to protect and/or authenticate a document of value or a product, the device provides an increased degree of overt and covert security, and permits tracking of the sale, use or other parameters associated with the product and/or document of value.








 
 
  Recently Added Patents
Maltol ether processes and intermediates
Method and system for video parameter analysis and transmission
Systems, methods, and apparatus to prepare a mobile device for provisioning
Encoding digital content based on models for predicting similarity between exemplars
Client network device and method for adjusting parameters of client traffic windows based on discovery of other network devices
Persistent luminescence nanoparticles used in the form of a diagnosis agent for in vivo optical imaging
Illuminating device
  Randomly Featured Patents
Bi-aromatic dibenzofuran derivatives and their use in human and veterinary medicine and in cosmetics
Lamp post
Multiband Doherty amplifier
Method of correcting unclear fingerprints
Interactive video and audio controller
Keyboard alignment device
Apparatus, system and method for secure information dissemination
Electronic device and method for recording disassemble history information and judging the electronic device thereof
Mirror with rim in groove mounting
Magnetoresistive head using a magnetoresistive element as a magnetic detector